Gas heating apparatus.



H. G. FRANKLIN.

GAS HEATING APPARATUS. APPLICATION FILED 1U LY 17.:918.

2 SHEETS-:SHEET l.

Patented Nov. 26

Inventou H. G. FRANKLIN. GAS HEATING APPARATUS. APPLICATION HLED'JULY 11.1918.

Patented Nov. 26', 1918] HARRY G. FRANKLIN, HARTWELIJ, OHIQ.

GAS HEATING APPARAT US.

I To all whom it may concern:

Be it known that I, HARRY G. FRANKLIN,

a citizen of the United J'tates, and residing at Hartwell, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in Gas Heating Apparatoe, of which the following specification is .a full disclosure.

My invention relates to a gas heating apparatus particularly adapted for use in conchbination with a domestic hot-air furnace or other household furnaces for either hotwater or steam.

An object of the invention is to provide a gas heating apparatus which can be easily and quickly swung and removed from its working position, so that the tire chamber of the furnace is accessible for introducing a solid fuel, and the gas supply to the burners automatically cut off or controlled simultaneously with the'motion for throwing the apparatus from its working position, and vice versa. I

Another object of the invention is to provide a burner tube detachably and adjustably connected over a gas supply nozzle, and of a. Venturi tube design, furnishinga central contracted portion from which the tube tapers in opposite directions outwardly toward its ends, for increasing the efficiency of the burner, and an inclined laterally flaring baffle projecting from the end ofthe tube and over the discharge opening for deflecting the flame and heat against the object to be heated to secure the best results.

Other objects of the invention relate to details of construction and arrangement of parts more fully set forth in the description of the accompanying drawings. forming a. part of this specification. in which like ref erence characters denote corresponding parts throughout the several views, of which Figure 1 is a front elevation of a domestic hot-air furnace for bituminous or solid fuel with myimproved gas. burners projected into the fire chamber of the furnace through the fuel feed opening. above the grate and ash-pit. with the feed door of the furnace shown in its open position.

Fig. 2 is a top plan view of a series 0 burners connected to a common feed pipe as a manifold. The feed pipe at one end connects with a plug valve shown in section.

Fig. 3 is a section on line 3, 3, Fig. 2.

Specification of Letters Patent.

Patented Nov. 26, 1918.

Application filed July 17, 1918. Serial No. 245,413.

Fig. 4; is an enlarged section through the valve on line 4, Fig. 2.

The gas burners and supply connections, as illustrated, are arranged for. installation with a coal burning domestic hot-air furnace which permits the furnace to be readily converted from gas to coal burning, as emergencies may arise. The description, therefore, will be principally directed to such particular use, although it is apparent that the burners are adapted for other uses.

Referring to the drawings, 1 indicates an ordinary and commercial hot-air furnace of a coal burning type consisting of a heater or stove, surrounded by a sheet metal casing,

to provide an intermediate air space or passage as a. conductor for directing the heated air to hot-air conductor v piping connecting with the. top of the furnace and leading to the various rooms or apartments to be heated. I

The furnace may also represent a type commercially known as a pipeless furnace in immediate connection with a room directly above the furnace. The furnace at its front side is provided with a feed opening 2. consisting of a furnace snout projection from the fire-boxof the heater and connecting with the front face plate of the furnace, to which a feed door 3 is hinged. The furnace has a second passage below the feed passage leading into the ash-pit of the heater. closed by a door tznonnted upon the front face plate.

No removal of parts or alterations to the furnace are required for making a gas burner installation. so tltat the furnace can be readily converted for either has or coal without any tools or the service of a skilled mechanic, and the conversion can be made by anyone in a few minutes.

It has been customary to install gas burners into a hot-air furnace by extending the gas supply pipe into the ash-nit and prothe heater and outer sheet metal casing. B

throwing the flame directly against suc convex or spherical surface, a larger volume of heat is radiated in said space than is possible with the. burners disposed below or at. thegrate to discharge the gas flame into the fire-pot or against the walls of the fire-pot Another material advantage is obtained in that the burners can be extended lnto the heater through the feed opening, bringing them to a more accessible elevation for regulating the gas to the burners and for with drawing the burners from the heater.

In the drawing, three burners are com prised in the ser es, the number being optional and as may be required for a given capacity. They are all the duplicate of one another, with the gas supply independently regulated and controlled, and with their gas nozzles projecting from a manifold or p pe 5, extending in a horizontal plane in front oi" the furnace face plate when 1n commls sion.

'In the preferred form of construction, as illustrated, the pipe 5, as a manifold, has a nun-na of nipples 6 projecting therefrom, =l3lldlll upon the number of burners emnected thereto for regulating or controlling the gas supply to the burner. A nozzle 8 connected to the valve and projects laterally therefrom, over which the inlet end of tapering from each end inwardly to the (:Mlli'nl contracted portion 10. The rear end oi the tube has a spider or web 11 provided with a. central apertured hub axial with'the tube into and through which a nozzle 8 is engaged. This rear portion of the tube is open to the atmosphere, furnishing an air inlet around the nozzle for the purpose of providing a. combustible mixture. The opposite or discharge and of the burner tube is abruptly enlarged to provide an annular shoulder 12 against which a wire gauze disk rosts. This disk inserted in the tube dislnn'gm end to prevent any back flash. A hood or baffle flange 13 projects from the discharge end of the tube, inclined for-- 'wardly over the discharge opening of the lube and flares outwardly or laterally for. dcllcctgng or spreading the flame against the ob ect or wall to be heated. The burner tube is one, to the feed nozzle by a thumb *lach nipple has a valve 7 con screw 14, engan'ed through the hub portion of the spider. The burner tubes can be readily inserted upon or slipped oif of the nozzles and also turned thereon for ad usting the tube, so that the balile is properly positioned for "directing the flame against. the wall of the combustion chamber of the heater. The bullies in the drawings are shown inclining in an upward direction, deflQCLlllg thQ, flame upwardly against the Wall of the combustion chamber, but if desired they may be directed downwardly or at any angle as may be deemed best for the par ticular installation. j

The supply pi e or manifold 5 has its free end capped out? its opposite end connects with the angle bend of a tubular plug valve 15. The plug valve engages into the valve casing. 16, thevalve casing has one end connecting with the vertical supply pipe 17 and its opposite end with a section of pipe 18, extending downward to the base of the furnace, to rest uponthe floor or otherwise rigidly fixed to provide a support for the parts'connected thereto. The plugvalve is of tubular construction to provide a conduit therethrough,-adapted to communicate with the supply ipe 17, through the port 20 in the plug va ve, and the port 21 in the casing 16, when the ports are in registry with the manifold in its horizontal position. The valve therefore functions as a pivot for the manifold for swinging the manifold from either horizontal to vertical position, as well as controlling the gas supplyrto the manifold. Thus the manifold, when the burner tubes are detached,'can be readily swung upward outof the way when it is desired to fire the furnace with coal. and at the same time cut of! the gas supply thereto as a safety feature.

Thus the gas intallation can be quickly and easily removed from its working position so that the fire chamber may be accessilfalelfor thepurpose of introducing a solid Having described my invention, I claim 1. Ina gas heating apparatus, a fuel feed 'pipe having a discharge nozzle, a gas burner portion and opposite enlarged ends, one end engaged over and secured to said nozzle providing an air inlet into the tube around the nozzle, the opposite end of the tube abruptly'enlarged, providing an interior annular'shoulder, a wire gauze disk within said tube engaged against said shoulder, and an inclined laterally flarin baffle integral with the discharge endof t e tube and extending over the opening thereof.

2. In agas h(..-..ting apparatus, a fuel feed" llllll' having a dischargeTnozzle, a Venturi gas burner tube havinghenlarged'open ends one end engaged over saidmozzIe-and proigees eee v viding an air inlet around the nozzle, the engaged over said nozzle and providing an opposing end having a'baftle extending over air inlet around the nozzle, the opposite the discharge opening. end abruptly enlarged, nroviding an interior 3. In a gas heating apparatus, a fuel feed annular shoulder, and a wire gauze disk eni pipe having a discharge nozzle, e Venturi gagged against said shoulder within the tube, 20 gas burner tube having enlarged open opend a bafile integral with the discharge end posite ends one end engaged over said nozzle of the tube inclined over the opening .and providing an air inlet around the thereof.

nozzle, the opposite end abruptly enlarged, In Witness whereof, I hereunto subscribe 10 providing an interior annular shoulder, and my name, as attested by the two snbserib- 25 a wire gauze disk engaged against said ing witnesses. shoulder within the tube. HARRY G. FRANKLIN.

44. In a gas heating apparatus, a fuel feed Witnesses: gripe having a discharge nozzle, an open end W. VOOGHIINBERG,

15d enturi .gas burner tube having one end L. O. Beex 

